ICSE Class 9 Answered
the sum two number x and y is 10 and their product is 8.
Asked by melodygaming0017 | 17 Sep, 2021, 20:45: PM
Expert Answer
Given information :-
Sum of numbers , X + Y = 10 .................... (1)
Product of numbers , X Y = 8 ....................(2)
From eqn.(1) , we get , Y = ( 10 - X )
If we substitute Y in eqn.(2) , X ( 10 - X ) = 8 or X2 -10X + 8 = 0 ................(3)
Roots of above quadratic equation are 5+
and 5 -
and 5 - Numbers are same as roots of quadratic equations .
Hence numbers are , 9.123 and 0.877
Answered by Thiyagarajan K | 17 Sep, 2021, 23:20: PM
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